Shiremog, I have attached a photo of a temporary fix I did on my own car. Since doing it, I no longer notice the hole behind the steering wheel. I cut out the shape in a rubber garage door seal and tacked it to the cowl with bostik glue. Does the job. I will do a more permanent fix in the winter. Last weekend at Gaydon, one one car with the similar cowl, the owner had edged cowl with rubber u tube. I however feel that the hole needs to be filled in.
Ian 2011 Plus 4 Wild Mogs Reims 2019, Goodwood 2018, Isle of Man 2017, Carried on to Caramulo" 2016